Acmeodon secans

via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- AcmeodonPBDB
- Diet
- insectivore, carnivorePBDB, for Leptictidae
- Life habit
- ground dwellingPBDB, for Leptictidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 5.9 million years on record.
Every occurrence read is dated to somewhere between 63.4 Mya and 57.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
20 occurrences of Acmeodon secans on record, most of them in the Paleocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
20 occurrences- Paleocene100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
3 formations
Loading coastlines…
The named rock units Acmeodon secans has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Acmeodon secans and its relatives
PaleoceneWhere Acmeodon secans and its relatives were recorded in the Paleocene.
Found in the same rock
145 taxa- Promioclaenus acolytus15 sites
- Anisonchus sectorius9 sites
- Aphronorus fraudator8 sites
- Litomylus dissentaneus8 sites
- Tetraclaenodon puercensis8 sites
- Tricentes subtrigonus8 sites
- Chriacus pelvidens7 sites
- Haplaletes disceptatrix7 sites
- Periptychus carinidens7 sites
- Ptilodus7 sites
- Aphronorus ratatoski6 sites
- Diacodon puercensis6 sites
- Mixodectes malaris6 sites
- Psittacotherium multifragum6 sites
- Bryanictis microlestes5 sites
- Litaletes disjunctus5 sites
- Protictis haydenianus5 sites
- Protoselene opisthacus5 sites
- Arctocyon ferox4 sites
- Chriacus baldwini4 sites
- Gelastops parcus4 sites
- Goniacodon levisanus4 sites
- Mioclaenus turgidus4 sites
- Promioclaenus lemuroides4 sites
The Paleobiology Database records 20 sites for Acmeodon secans, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
10 references- Paleontology and biostratigraphy of lower part of Polecat Bench Formation, southern Bighorn Basin, Wyoming9
- Paleocene vertebrate paleontology of the San Juan Basin, New Mexico2
- The Kutz Canyon Local Fauna, Torrejonian (Middle Paleocene) of the San Juan Basin, New Mexico;2
- A new middle Paleocene (early Tiffanian) mammalian fauna from the Overland Member of the Fort Union Formation, Great Divide Basin, Wyoming, U.S.A.1
- Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K–Pg mass extinction1
- Synonymies and reidentifications of North American fossil mammals1
- Paleocene mammalian biostratigraphy of the Carbon Basin, southeastern Wyoming, and age constraints on local phases of tectonism1
- Mammalian paleontology of the Fort Union Formation (Paleocene), eastern Rock Springs Uplift, Sweetwater County, Wyoming1
- Swain Quarry of the Fort Union Formation, Middle Paleocene (Torrejonian), Carbon County, Wyoming: geologic setting and mammalian fauna1
- A new multituberculate from the Paleocene Torrejon fauna of New Mexico1
Each of the 20 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Acmeodon secans
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Acmeodon secans was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAcmeodon through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matthew and Granger 1921